Paracyclophanes: extending the bridges. Synthesis

Z Pechlivanidis, H Hopf, L Ernst

Index: Pechlivanidis, Zissis; Hopf, Henning; Ernst, Ludger European Journal of Organic Chemistry, 2009 , # 2 p. 223 - 237

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Citation Number: 21

Abstract

Abstract Preparatively satisfactory routes to [3.2] paracyclophane (10),[4.2] paracyclophane (14),[4.3] paracyclophane (19) as well as several derivatives of these compounds–among others the bromides 25, the ester 31, the diesters 40–43–are described using well- established methods of cyclophane chemistry (ring-closure reactions leading to thiacyclophanes, ring contraction by sulfone pyrolysis). The parent systems and their ...